CN211809502U - Air bag cold air type gas generator - Google Patents
Air bag cold air type gas generator Download PDFInfo
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- CN211809502U CN211809502U CN202020386325.9U CN202020386325U CN211809502U CN 211809502 U CN211809502 U CN 211809502U CN 202020386325 U CN202020386325 U CN 202020386325U CN 211809502 U CN211809502 U CN 211809502U
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Abstract
The utility model discloses an air bag cold air type gas generator, including the gas generator casing, the outer wall top of gas generator casing is equipped with the ignition unit, the inner chamber top of ignition shell is connected with some firearm, the bottom of gas generator casing is connected with the high-pressure air chamber casing, the inner chamber of high-pressure air chamber casing is equipped with high-pressure air chamber, high-pressure air chamber's inner chamber is filled there is the helium, high-pressure air chamber's top is equipped with the rupture membrane, the right side of rupture membrane is connected with first rupture membrane and keeps the ware, the left side of rupture membrane is connected with the second rupture membrane and keeps the ware, the outer wall right side wall of gas generator casing is equipped with the diffuser. The utility model discloses compare in traditional firework formula generator, when this device inside high-pressure gas got into air bag, can not produce a large amount of heats, can not have the risk of burning out air bag. And the burning powder is not much, so that the safety of a user is not influenced.
Description
Technical Field
The utility model relates to an air bag gas generator technical field specifically is an air bag cold air type gas generator.
Background
In order to improve safety, a traditional automobile can protect the safety of people in the automobile as far as possible when an accident happens, and an air bag is arranged in the automobile and used for buffering impact force. Traditional firework formula generator adopts the burning to pass and explodes the medicine and produce a large amount of gas, fills air bag, and the gas that produces after the burning has a large amount of heats, and gaseous direct rush out may damage gas generator or burn out air bag, and the burning powder is more, is unfavorable for user's safety. To this end, an airbag cold gas generator is proposed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air bag cold air type gas generator to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a cold air type gas generator of an air bag comprises a gas generator shell, an ignition unit is arranged at the top of the outer wall of the gas generator shell, the top of the inner cavity of the gas generator shell is provided with a base, the top of the inner cavity of the gas generator shell is provided with an ignition shell below the base, the top of the inner cavity of the ignition shell is connected with an igniter, the bottom of the gas generator shell is connected with a high-pressure gas chamber shell, the inner cavity of the high-pressure air chamber shell is provided with a high-pressure air chamber, the inner cavity of the high-pressure air chamber is filled with helium, the top of the high-pressure air chamber is provided with a burst membrane, the right side of the burst membrane is connected with a first burst membrane retainer, the left side of rupture membrane is connected with the second rupture membrane and keeps the ware, the outer wall right side wall of gas generator casing is equipped with the diffuser, the left side of diffuser and the outer wall right side wall of gas generator casing communicate.
As further preferable in the present technical solution: and a nozzle is arranged at the top of the inner cavity of the high-pressure air chamber.
As further preferable in the present technical solution: the ignition unit is electrically connected with the igniter, and the top of the base is fixedly connected with the bottom of the ignition unit.
As further preferable in the present technical solution: helium is held in high-pressure air chamber's inner chamber, the inner chamber bottom of ignition shell is equipped with the air chamber, the outer wall bottom of ignition shell is equipped with the ignition nozzle.
As further preferable in the present technical solution: a first diffusion opening is formed in the right side of the top of the outer wall of the diffuser, and a second diffusion opening is formed in the right side of the bottom of the outer wall of the diffuser.
As further preferable in the present technical solution: the gas generator is characterized in that a first screw is arranged on the left side of the bottom of the outer wall of the gas generator shell, the first screw penetrates through the bottom of the left side of the outer wall of the gas generator shell and extends into the left side wall of the high-pressure gas chamber shell, a second screw is arranged on the bottom of the right side of the outer wall of the gas generator shell, and the second screw penetrates through the bottom of the right side of the outer wall of the gas generator shell and extends into the right side wall of the high-pressure gas chamber shell.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses compare in traditional firework formula generator, the utility model discloses a when inside high-pressure gas got into air bag, can not produce a large amount of heats, can not have the risk of burning out air bag. And the burning powder is not much, so that the safety of a user is not influenced.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural diagram of the ignition unit of the present invention.
In the figure: 1. a gas generator housing; 2. an igniter; 3. an ignition unit; 4. a high pressure gas chamber; 5. cracking the film; 6. a nozzle; 7. a diffuser; 8. a first burst membrane holder; 9. a high pressure gas chamber housing; 10. a base; 11. a first diffusion opening; 12. helium gas; 13. a second diffusion opening; 14. an ignition housing; 15. an air chamber; 16. an ignition nozzle; 17. a first screw; 18. a second screw; 19. a second burst membrane holder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b):
referring to fig. 1-3, the present invention provides a technical solution: a cold air type gas generator of an air bag comprises a gas generator shell 1, an ignition unit 3 is arranged on the top of the outer wall of the gas generator shell 1, a base 10 is arranged on the top of the inner cavity of the gas generator shell 1, an ignition shell 14 is arranged below the base 10 on the top of the inner cavity of the gas generator shell 1, an igniter 2 is connected to the top of the inner cavity of the ignition shell 14, a high-pressure air chamber shell 9 is connected to the bottom of the gas generator shell 1, a high-pressure air chamber 4 is arranged in the inner cavity of the high-pressure air chamber shell 9, helium 12 is filled in the inner cavity of the high-pressure air chamber 4, a burst membrane 5 is arranged on the top of the high-pressure air chamber 4, a first burst membrane holder 8 and a second burst membrane holder 19 are connected to the right side of the burst membrane 5, a second burst membrane holder 19 is connected to the left side of the burst membrane 5, a diffuser, the left side of the diffuser 7 communicates with the outer wall right side wall of the gas generator case 1.
In this embodiment, specifically: the top of the inner cavity of the high-pressure air chamber 4 is provided with a nozzle 6, the top of the inner cavity of the high-pressure air chamber 4 is sealed by a burst membrane 5, the burst membrane 5 can be ignited by the igniter 2 to further increase the temperature, the temperature of the burst membrane 5 is increased, and finally the burst membrane can be opened due to the internal pressure of the high-pressure air chamber 4.
In this embodiment, specifically: the ignition unit 3 is electrically connected with the igniter 2, the top of the base 10 is fixedly connected with the bottom of the ignition unit 3, the base 10 is used for supporting the igniter 2, and the igniter 2 in the ignition unit 3 can be ignited through the transmission of electric signals.
In this embodiment, specifically: helium 12 is accommodated in the inner cavity of the high-pressure air chamber 4, an air chamber 15 is arranged at the bottom of the inner cavity of the ignition shell 14, an ignition nozzle 16 is arranged at the bottom of the outer wall of the ignition shell 14, and the igniter 2 ignites the sprayed helium 12 through the ignition nozzle 16.
In this embodiment, specifically: first diffusion opening 11 and second diffusion opening 13 have been seted up on the outer wall top right side of diffuser 7, and second diffusion opening 13 has been seted up on the outer wall bottom right side of diffuser 7, and after rupture membrane 5 opened, high-pressure gas helium 12 in the high-pressure gas chamber 4 can get into in the diffuser 7 through nozzle 6, and then get into in the air bag through first diffusion opening 11 and second diffusion opening 13.
In this embodiment, specifically: the left side of the outer wall bottom of the gas generator shell 1 is provided with a first screw 17, the first screw 17 penetrates through the left side bottom of the outer wall of the gas generator shell 1 and extends into the left side wall of the high-pressure gas chamber shell 9, the right side bottom of the outer wall of the gas generator shell 1 is provided with a second screw 18, the second screw 18 penetrates through the right side bottom of the outer wall of the gas generator shell 1 and extends into the right side wall of the high-pressure gas chamber shell 9, and the first screw 17 and the second screw 18 are used for connecting the gas generator shell 1 and the high-pressure gas chamber shell 9.
Working principle or construction principle, in use, the device is used in a conventional motor vehicle in order to increase safety and to protect the occupants of the vehicle as much as possible in the event of an accident, and the gas generator housing 1 comprises an elongated tubular housing designed as a high-pressure gas chamber housing 9. The gas generator housing 1 serves in particular for inflating an airbag, in particular an airbag, not shown. The gas generator housing 1 comprises a central, elongated, cylindrical high-pressure gas chamber 4 and an ignition unit 3 with an igniter 2. The high-pressure gas chamber 4 is closed by a burst membrane 5. The burst membrane 5 is positioned on the airbag side or diffuser 7 side. In the rest state of the gas generator housing 1, i.e. before its activation, the high-pressure gas chamber 4 is filled with high-pressure gas, helium 12, the ignition unit 3 comprises a base 10 which serves as a support for the igniter 2, the gas generator housing 1 comprises a diffuser 7, which diffuser 7 has a first diffusion opening 11 and a second diffusion opening 13, through which the released gas can flow out and into the airbag, the rupture disk 5 is fastened in the housing of the high-pressure gas chamber 4 by means of a first rupture disk holder 8 and a second rupture disk holder 19, the igniter 2 in the ignition unit 3 is ignited by the transmission of an electrical signal, the rupture disk 5 is increased by the ignition temperature of the igniter 2, the rupture disk 5 is eventually opened by the internal pressure of the high-pressure gas chamber 4 as the temperature increases, after the rupture disk 5 has opened, the high-pressure gas, helium 12, in the high-pressure gas chamber 4, is passed through the nozzle 6 into the diffuser 7, and further into the airbag through the first and second diffusion openings 11 and 13.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An air bag cold gas generator comprising a gas generator housing (1), characterized in that: the gas generator is characterized in that an ignition unit (3) is arranged at the top of the outer wall of the gas generator shell (1), a base (10) is arranged at the top of the inner cavity of the gas generator shell (1), an ignition shell (14) is arranged below the base (10) at the top of the inner cavity of the gas generator shell (1), an igniter (2) is connected to the top of the inner cavity of the ignition shell (14), a high-pressure air chamber shell (9) is connected to the bottom of the gas generator shell (1), a high-pressure air chamber (4) is arranged in the inner cavity of the high-pressure air chamber shell (9), helium (12) is filled in the inner cavity of the high-pressure air chamber (4), a burst membrane (5) is arranged at the top of the high-pressure air chamber (4), a first burst membrane holder (8) is connected to the right side of the burst membrane (5), a second burst membrane holder (19) is, the outer wall right side wall of gas generator casing (1) is equipped with diffuser (7), the left side of diffuser (7) and the outer wall right side wall of gas generator casing (1) are linked together.
2. The cold gas type inflator for an airbag according to claim 1, wherein: and a nozzle (6) is arranged at the top of the inner cavity of the high-pressure air chamber (4).
3. The cold gas type inflator for an airbag according to claim 1, wherein: the ignition unit (3) is electrically connected with the igniter (2), and the top of the base (10) is fixedly connected with the bottom of the ignition unit (3).
4. The cold gas type inflator for an airbag according to claim 1, wherein: helium (12) hold in the inner chamber of high-pressure air chamber (4), the inner chamber bottom of ignition shell (14) is equipped with air chamber (15), the outer wall bottom of ignition shell (14) is equipped with ignition nozzle (16).
5. The cold gas type inflator for an airbag according to claim 1, wherein: the right side of the top of the outer wall of the diffuser (7) is provided with a first diffusion opening (11), and the right side of the bottom of the outer wall of the diffuser (7) is provided with a second diffusion opening (13).
6. The cold gas type inflator for an airbag according to claim 1, wherein: the outer wall bottom left side of gas generator casing (1) is equipped with first screw (17), first screw (17) run through in the outer wall left side bottom of gas generator casing (1) and extend to in the left side wall of high-pressure air chamber casing (9), the outer wall right side bottom of gas generator casing (1) is equipped with second screw (18), second screw (18) run through in the outer wall right side bottom of gas generator casing (1) and extend to in the right side wall of high-pressure air chamber casing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386325.9U CN211809502U (en) | 2020-03-24 | 2020-03-24 | Air bag cold air type gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386325.9U CN211809502U (en) | 2020-03-24 | 2020-03-24 | Air bag cold air type gas generator |
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| Publication Number | Publication Date |
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| CN211809502U true CN211809502U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020386325.9U Active CN211809502U (en) | 2020-03-24 | 2020-03-24 | Air bag cold air type gas generator |
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| CN (1) | CN211809502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248962A (en) * | 2020-11-30 | 2021-01-22 | 宜致汽车安全系统（常熟）有限公司 | Safety air bag hybrid gas generator |
-
2020
- 2020-03-24 CN CN202020386325.9U patent/CN211809502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248962A (en) * | 2020-11-30 | 2021-01-22 | 宜致汽车安全系统（常熟）有限公司 | Safety air bag hybrid gas generator |
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